Sliding and folding partition



June 26, 1934. E. H. ELLlsoN 1,964,316

SLIDING AND FOLDING PARTITION June 26, 1934. El H. ELLISON sLIDING ANDFOLDING PARTITION Filed Jan. 2l, 1930 5 Sheets-Sheet 2 gli - ,.lnuwfm ll 1| w 1 N-m IWw\ |.w\ km NN NN HMM m vi .Uilm 1 1111 lllmnunuuu u N l.WM :i: g? N N1 Q. a um Q Y m i v w @fr .mmm fl N @1.3i

June 26, 1934. E H ELUSON 1,964,316

SLIDING AND FOLDING PARTITION Filed Jan. 2l, 1930 5 Sheets-Sheet 3.rmminimum/H...

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SLIDING AND FOLDING PARTITION Filed Jan. 21, 1930 5 Sheets-Sheet 4 June26, 1934. E, ELLISON 1,964,316

SLIDING AND FOLDING PARTITION Patented June 26, 1934 SLIDING ANDFOLDING- PARTITION Edward H. Ellison, Jamestown, N. Y., assgnor,

Company, New York,

Maine Application January 21,

32 Claims.

The present invention relates to folding doors and embodies, morespecifically, an improved door of this character in which is embodiedcertain features of constructionwhich materially facilitate theoperation of the door, strengthen the supporting portions thereof inboth open and closed position, and enable the door to be moved readilyinto open and closed position `without jamming or binding between thedoor supporting bodies and the cooperating portions carried by the door.

At the present time, many forms of folding doors are available, theconstructions being 'such as to enable the door to be Amoved to and from1 open and closedpositions, it being secured'in such positions byautomaticallyoperating mechanisms,

The very considerable size and weight, as well as, in many instances,the number of folding portions of the door, impose severe strains uponthe 2 elements which support the door sections upon the door supportingmeans which usually comprise tracks in the floor and door casing. Theproblems confronting the designer will be readily understood sinceprovision for securing-the door sections against displacement when inthe collapsed position must be afforded,as well as a locking means foreach pivot connection to secure the door pivotally until it has beenVmoved yinto a position in the plane of the supporting grooves.

Existing designs,'while providingfa form oflocking device vfor securingthe door sections pivotally until moved into such position, as well ascooperating guides and supporting members, have failed to provideelements of adequate strength and simplicity of construction to afford asuinciently reliable structure. Such existing designs furthermore havefailed to employ elements which are positively actuated by the movementof the door itself to effect the lockingthereof', aswell as 40 theproper control of such movements.

With a View to overcoming the aboveobjectionable features, aswell asaffording a' folding door construction, the supporting portions 'of'which are simple of construction and readily manufactured andassembled, `the 'present invention has been designed, the resultingstructuresr not :only being of adequate strength,'butbeing of suchcharact-er that it maybe accurately manufac trued and nished beforeshipment to simplify the installation materially.

In accordance with the foregoing, an object-of the present invention isto provide=a vdevice for supporting the weight of a section ofa foldingY door the elements -of which are/so formed and 05 related that eachalwaysa'ssumes its portion of mesne assignments, to

Austral Window N. Y., a corporation of 1930, Serial No. 422,272

the load and functions reliably and invariably. The attainment of thisobject,'in the present construction, is realized by the provision ofonly one supporting roller for each section, such roller engaging asuitable track adjacent the groove in the floor. In this manner, theparts thereof can be so `designed that they are of suicient strength andall of the weight of the door will always be carried by such parts.

A further object of the invention is to provide a positive lockingdevice at both the top and bottom of veach door section whereby movementof the door to or from open or closed position will actuatesuch vlockingdevices positively.

A further object of the invention is to provide a stop or limitingdevice in one of the tracks to serve as an abutment lagainst which acooperating stop on the door engages, to permit the door to be movedfully vand quickly into such position'as is necessary for swingingmovement thereof to take place.

A further object of the invention is to provide cooperating meansbetween one of the tracks and the locking mechanism for the doors tolock the vdoors in position before the stop mechanism carried thereby isfree from the guide, thus positively insuring the proper positioning ofthe doors at the time pivotal movement thereof takes place.

A further object of the invention is to provide a weight-supportingmember for the door which has cooperating portions for taking the weightreactions of the door in both the folded and extended positions.

A further object of the invention is to provide a means `for accuratelyand readily adjusting the height of the doors above the floor withoutimpairing the strength of the supporting mechanism.

A further object of the invention is to provide a lmeans -for mountingthe door sections in position after all of the necessary hardware forthe door has been applied.

Further objects, not specifically enumerated above, will be apparent Aasthe invention is described in greater detail in connection with theaccompanying drawings, wherein:

Figure l is a View in front elevation, showing a doorway in which afolding door, comprised of a plurality of folding sections, Ahas beenmounted.

' Figure 2 is a segmental View in elevation, partly broken yaway and insection, the section being taken` on line 2-'2 of Figure 3, and lookingin the directionof the arrows.

Figure 3 is a view in section, taken Online CII 3 3 of Figure 2, andlooking in the direction of the arrows.

Figure 4 is a view in section, taken on line 4 4 of Figure 2, andlooking in the direction of the arrows.

Figure 5 is a view in section, similar to Figure 4, but showing a doorsection moved partially into its folded position.

Figure 6 is a View in section, taken on line 6 6 of Figure 2, andlooking in the direction of the arrows.

Figure '7 is a view in section, taken on line 7 7 of Figure 5, andlooking in the direction of the arrows.

Figure 8 is an enlarged segmental view in elevation, partly broken awayand in section, showing the lower supporting and pivoting element of adoor section.

Figure 9 is a View in section, taken on line 9 9 of Figure 8, andlooking in the direction of the arrows.

Figure 10 is a view in section, taken on line 10-10 of Figure 8, andlooking in the direction of the arrows.

Figure 11 is a view in section, taken on line 11 11 of Figure S, andlooking in the direction of the arrows, this view being similar to thatof Figure 10, but showing the door sections in a folded or collapsedposition.

Figures 12, 13, 14 and 15 are Views similar to Figures 8, 9, 10 and 11,respectively, showing a modified form of supporting means for the lowerportion of the doors.

Referring to the above drawings, a door way is shown at 1, the floor 2being provided with a track or groove 3 which will be described morefully hereinafter. The top 4 of the door is provided with a track 5which will also be described more fully hereinafter.

The folding door shown in Figure 1 comprises a plurality of sections 20,in the instance shown, two sections being hingedly connected and adaptedto be folded or collapsed upon a desired side of the door way. It willbe apparent that the section of the folding door, adjacent the side ofthe door way against which the sections are to be collapsed, may bepermanently hinged in position as, for instance, by means of suitablepins 21. The sections of the door may be hinged together at 22 andsuitable hand grips 23 provided to facilitate operation of the doors.

Where the door sections are hinged together in units of two, the outeredges of such units are secured in the top and bottom grooves 3 and 5.In order that the means for securing the units at the respective pointsmajr be understood more intelligently, the top units will first bedescribed.

Referring particularly to Figures 1, 2, 3, 4, 5, 6, and 7, the track 5,above referred to, will be seen as formed of a pressed metal channel 6carried in spaced U-shaped reinforcing members 7 and supported to thetop 4 of the door way by means of spaced bolts or screws 8. One ofthearms, indicated at 9, of the reinforcing member '7 is shorter than theother and is adapted to receive a keeper plate 10 which provides ahorizontal groove cooperating with the vertical groove formed by thechannel 6. The lip of the channel 6 adjacent the keeper plate 10 isturned back to form the top wall of such horizontal groove. An inwardlyprojecting ange 11 is formed on the keeper plate 10 to cooperate with aninwardly projecting ange 12 on the channel 6 to provide a restrictedgroove within which a guide 24, carried by the door, rides. At asuitable point along the length of the keeper plate 1G, a horn 13 isprovided. The flange 11 and vertical portion of the keeper plate are interrupted at this point to receive an inwardly projecting arm 14 and aninwardly projecting stop member 15, as clearly shown in Figure 5.Outwardly projecting flanges 16 and 17 serve as continuations of therespective members 14 and l5, thus affording a track or groove 18 withinwhich the arm 24 may ride. To insure proper operation and guard againstslight inaccuracies in the elements during manufacture, it is desirablethat the anges 16 and 17 diverge slightly, as shown in Figure 5. Anarcuate slot 19 is formed in the flange 11 and is concentric with thepivot point of the right hand door section to be engaged by a suitablestop described more fully hereinafter. A mutilated notch 1D is formed inthe flange 1i, the edge thereof also being concentric with such pivotpoint and terminating in a transverse shoulder 19", the purpose of whichwill be described presently.

From the foregoing, it will be apparent that the keeper plate 10, uponwhich the horn extension 13 has been mounted, may be formed as a unitand is detachably mounted in position in order that the door sections,after having had all of the necessary hardware applied thereto, may bemounted within the tracks.

Upon the top edge of a door section, a plate 25 is mounted. It isdesirable that this plate be countersunk and flush with the top of thedoor and arm 24 may be integral therewith. The arm 24 is formed with alateral projection 26 which overlies the horizontal flange 11 and abutsagainst stop member when the top has reached the proper position withrespect to the track. After having abutted against such stop, the flange26 may then be swung in the groove formed by the horn to permit the doorsection to be moved pivotally into a collapsed position. At the end ofthe plate distant from arm 24, a cylindrical pivot member 27 is mounted.This pivot member is preferably provided with a roller 28 which ridesbetween the spaced walls of the channel 6 and thus supports the doorsection in position at its upper extremity. rllhe pivot member is of agreater diameter than the width of the slot between the flanges 11 and12. In order that it may be moved in such slot, it is formed with asquared portion 29 which reduces the diameter of the pivot membersufcently in one direction and affords a at surface for cooperating withthe edge of the flange l1. A stop or lock pin 30 is mounted in the plate25, the pin being squared and of a thickness equal to the width of thearcuate slot 19. This pin is spaced from the axis of the pivot member 27a distance equal to that of the spacing of slot 19 therefrom, in thismanner causing the arcuate path of pin 30, when the door is movedpivotally, to coincide with the slot 19. When arm 26 has engaged stop15, the pivot member 27 is in the position shown in Figure 4. In thisposition, the mutilated portion of the member is in proper position withrespect to the notch 19 to permit the cylindrical portion of the memberto be moved into the notch. The width of the slot between flanges 11 and12 plus the depth of the notch 19 equals the diameter of the pivotmember 2'7 and, in this manner, the door section and pivot member canonly be moved pivotally when the door is in the position shown in Figure4. The stop member 30, when the door is in the above position, is at theimmediate entrance to the slot 19 and, having .a greater linear movementinan arcuatevdirection than the periphery of the pivotrmember 27,timmediately engages slot 19 'upon initial lmovement of the doorpivotally. In this manner, the effective locking of the door section inadesiredposition is insured since anypivotal Zmovement of the doorprevents the dislodgingof the door section from its supporting slots.vSeveral-respective positions of the door in its xmovement to-and from afolded to an extended position are illustrated in Figures 4, 5, 6, and7. In Figure 4, the door section is in extended position preparatory tothe being folded kback into a collapsedv position. Figure 5 representsVpartial movement of the door to or from a folded position, the door Vinsuch Tposition being indicated in dot andv dash lines. lFigure shows therelative 'disposition' of parts, particularly with respect to the 'hingemember and guide 'slot preparatory to pivotal movement from an extendedinto acollapsed position. Figure 7 shows the relative position'of thepivot member and flocking pin vwhen the Ydoor section has been movedinto collapsed position.

The lower supporting lmembers are shown 4in detail in Figures 8, 9, 10,and 11, reference to such figures for a ydetailed -description of thesemembers now being made. Figure 9 shows the construction of the 'floorgroove, more specifically, such groove being formed by a channel vmember31 formed with ran upwardly projecting; portion 32. One Vwall 33, ofthis-.upwardly vprojecting portion serves as one side of the groove 3,atrack 34 being secured to the iupper side ofthe channel 31 -to receivethe weight of the door through a roller to be described hereinafter.This track 34 is spaced from the wall 33 and serves as the other side ofAgroove 3. -Aplateor stop-member is secured to the upwardly extendingportion 32 and carries a pin or abutment 36 to'hold the lower end oflthe door against displacement -when moved into an open position, asdescribed more fully hereinaftenscrews 37 serving Vto -hold the plateagainst the floor.

A frame 38 isset into the-lower corner of the door, the lower side ofthe vframe lying flushV with the lower side of the door and the outerside thereof being set sufficiently Lto permit a cover plate 39 to lieflush with theadjacent 'vertical edge of the door. The frame 38 -may 4besecured to the door by screws 40 and 'a horizontally eX- tending armf41is formed on the frame 'to receive a caster element to be describedlater. -A vertically extending arm 42 connects the horizontal arm 41with the upper kportion-ofv the frame-38 and forms a face over whichthev cover plate-39 is secured to finish the side of the Ydoor properly.

An annular shoulder or bushing-44 lis formed on the arm 41 and threadedVinternally to receive a threaded bushing 45 of the caster. The bushing45 isfformed withange V46v which-serves as a thrust bearing, the castershaft 47 =being journaled -in the bushing 45 and -aestep Jbearing -48being received between the Aflange-'46:andwa cooperating flange 49 Yonthe'caster. Aset-screw 50, carried -in the bushing 44, engages =agroove51 in the threaded bushing45 and rpermits such bushing to be secured`in.-anadjusted position. By rotatingthe bushing-45, after backing awaythe set screw 50, theheight of `the caster with respect to the door may-be varied as desired.

The caster is formed with a downwardly vextending flange 52 Lwhich`engages the rgroove 3 and is confined between the vsides thereof. vAroller 53 is journaled-ona stub shaft:54, secured in theidownwardlyextending fiange 52 and the outer extremity of shaft 54 is formed with aboss 55 to be engaged bya cooperating boss 56, formed as a web, on thelower lextremity of the frame 38. When the door is moved into foldedposition, boss 56 -bearsagainst the boss 55, the .latter taking thereaction of the weight of the door and materially strengthening thesupporting member.

.Upon the web or face 42, a plate 43 is secured, this plate lyingbetween the face 421and the cover plate 39. Plate 43 extends downwardlyand is formed, on its lower extremity, with an arm 57 which curvesoutwardly and rearwardly, as clearlyA shown in Figure 10. A cut awayportion is formed in the cover plate 39 to receive the arm 57, thelatter engaging the pin 36 when the dooi is turned, to prevent the lowerend of the door from being displaced with respect to the groove. ThisVposition is Ulearly illustrated in Figure 11.

Cover plates 58 maybe applied to the door and secured thereto by meansof screws 59 to conceal the'supporting element. It is preferred thatthese cover plates be integral with the face plate 39, the entire beingslipped on and secured in place after the supporting element has beenassembled and applied to the door. It will be further seen that arm 57engaging stop 36 will prevent the outward movement of the lower portionof the door, thus effectively locking the door in its folded position.

Referring again to Figure 1, the side of the door way opposite to thexed pivots 2l is preferably constructed in such manner that ity mayyield to pressure exerted by the door. In this manner, irregularities insize and shape of .the elements are accommodated and a tight closureafforded. To this end, the side of the door way 60 is supported uponstuds 61, coil springs 62, normally urging the side of the door wayoutwardly. When the door sections are extended, the outer edge of theextreme left hand section, as viewed in Figure 1, engages the yieldingside of the door way and effects a tight connection between theseelements.

With reference to'Figures 12, 13, l4and 15 a preferred form of lockingdevice is shown in which the stop pin 36 of Figures 8, 9, l0 and 11 isreplaced by a stop plate 60 which is secured directly upon the trackportion 32. This plate is of sufficient thickness to serve ias anabutment but does `not kproject upwardly into the path -of the coverplate 58, the latter clearing the plate 60 to permit the .door to beslid freely in the groove. Overflange -49 a bracket 61 is'secured, itbeing formed `with anv extension l62 having a recess 63. Recess`i63engages the webbed tongue 64, formed on the tting 38 and preventsturning movement of bracket 61 with respect to the fitting 38. It willbe seen that the 'bracket 61may slide up or down with respect to the web64, thus permitting ready 'adjustment of the shaft 47 in the journal.

A downwardly extending stop arm 65 is formed on thev bracket 61, lyingwithin the face plate 58 and extending below the lower extremitythereof. This arm moves into engagement lwith the plate 60 when the dooris turned into the position shown in Figure 15, and thus locks the:doors in a turned position to prevent movement thereof withV respectto: the groove.

-Fromthe foregoing, it will be seen that all of the weight of each doorsection is taken bya-sin gle' roller. It is lpractically impossible to`lay a track :in a `iioor so-accurately that double rollers will bothcarry an equal load. Either one or the other ofthe rollers is doinga'llof the work and,'

since, in the case of double rollers each is designed `to carry half ofthe weight of the door, a serious strain results upon the mechanism. Ithas therefore been found highly desirable to provide only one rollerwhich carries all of the load. A roller of this character can beconstructed of sufficient strength and the resulting structure is farmore serviceable. It will be seen that a positive locking is providedfor the door at both the top and bottom thereof when it is in a foldedposition and a stop in the upper track accordingly facilitates themovement of the door into and out of folded position. The cooperatingelements of the doors and tracks are formed as units in such manner thatthey may be accurately made at the shop and readily installed withoutthe necessity of careful and accurate work during installation. Thelocking members upon the door and grooves lock the doors in pivotedpositionbefore the guide arm 24 is free from the slot, thus insuringproper positioning of the doors at all times. The bottom casters, byproviding additional bearing surfaces in the form of bosses 55 and 56prevent injury to the elements of the supporting members, thus affordinga more rugged construction. The above enumeration of advantages andimproved elements serves merely to indicate the more important featuresof the invention and a more careful inspection of the structure willresult in further advantages being found. While the invention has beendescribed with specific reference to the construction shown in theaccompanying drawings, it is not to be limited, save as defined in theappended claims.

I claim as my invention:

l. An upper guide groove for a door comprising a channel member havingsides forming a groove, means to secure the channel to the upper portionof a doorway, an inwardly extending flange on one of the side members ofthe channel, an outwardly extending llange on the other channel sidemember, a keeper plate removably secured to the last named channel sidemember and overlying the outwardly extending flange, an inwardlyextending flange on the keeper plate, and a out away portion in thekeeper plate and inwardly extending flange.

2. An upper guide groove for a door comprising a channel member havingsides forming a groove, means to secure the channel to the upper portionof a doorway, an inwardly extending flange on one of the side members ofthe channel, an outwardly extending flange on the other channel sidemember, a keeper plate removably secured to the last named channel sidemember and overlying the outwardly extending flange, an inwardlyextending flange on the keeper plate, a cut away portion in the keeperplate and inwardly extending flange, and a stop adjacent one side of thecut away portion.

3. An upper guide groove for a door comprising a channel member havingsides forming a groove, a stop mounted in one of the sides, a cut awayportion adjacent the stop, and guide means formed at the cut awayportion.

4. An upper guide groove for a door comprising a channel member havingsides forming a groove, a stop mounted in one of the sides, a out awayportion adjacent the stop, and downwardly extending flanges formedadjacent the cut away portion.

5. An upper guide groove for a door comprising a channel member havingsides forming a groove, a stop mounted in one of the sides, a cut awayportion adjacent the stop, and downwardly extending flanges formedadjacent the cut away portion, one of the flanges being a, continuationof one surface of the stop.

6. An upper guide groove for a door comprising a channel member havingsides forming a groove, means to secure the channel to the upper portionof a doorway, an inwardly extending flange on one of the side members ofthe channel, an outwardly extending flange on the other channel sidemember, a keeper plate removably secured to the last named channel sidemember and overlying the outwardly extending flange, an inwardlyextending ilange on the keeper plate, a cut away portion in the keeperplate and inwardly extending flange, a stop adjacent one side of the cutaway portion, and guide flanges formed at either side of the cut awayportion.

7. An upper guide groove for a door comprising a channel member havingsides forming a groove, means to secure the channel to the upper portionof a doorway, an inwardly extending flange on one of the side members ofthe channel, an outwardly extending flange on the other channel sidemember, a keeper plate removably secured to the last named channel sidemember and overlying the outwardly extending flange, an inwardlyextending flange on the keeper plate, a cut away portion in the keeperplate and inwardly extending ange, a stop adjacent one side of the cutaway portion, and guide flanges formed at either side of the cut awayportion, one of the last named guide ilanges forming a continuation ofthe stop and the last named guide flanges diverging outwardly away fromthe cut away portion.

8. An upper guide groove for a door comprising a channel member havingsides forming a groove, a removable portion secured to one of the sides,a door pivoting means carried by the removable portion adjacent one endthereof, and a stop on the removable portion.

9. An upper guide groove for a door comprising a channel member havingsides forming a groove, a removable portion secured to one of the sides,a door pivoting means carried by the removable portion adjacent one endthereof, and a stop carried by the removable portion at the other endthereof.

10. An upper guide groove for a door` comprising a channel member havingsides forming a groove, a removable portion secured to one of the sides,a curved notch in the removable portion adjacent one end thereof, and astop on the removable portion.

1l. An upper guide groove for a door comprising a channel member havingsides forming a groove, a removable portion secured to one of the sides,a curved notch in the removable portion adjacent one end thereof, ashoulder in the notch, and a stop on the removable portion at the otherend thereof.

l2. An upper guide groove for a door comprising a channel member havingsides forming a groove, a removable portion secured to one of the sides,a curved notch in the removable portion adjacent one end thereof, ashoulder in the notch, a curved groove concentric with the curvature ofthe notch, and a stop on the removable portion at the other' endthereof.

13. An upper guide groove for a door comprising a channel member havinga flange forming one side of a groove, a removable portion secured tothe other side of the channel, a flange on the portion cooperating withthe ilrst flange to form a groove of a desired width, a curved notch inthe last named ilange to form a widened portion in the groove, and astop carried by the removable portion.

14. An upper guide groove for a door comprising a channel member havinga flange forming one side of a groove, a removable portion secured tothe other side of the channel, a flange on the portion cooperating withthe first flange to form a groove of a desired width, a curved notch inthe last named flange to form a widened portion in the groove, ashoulder in the notch and a stop carried by the removable portion.

15. A supporting and guiding mechanism for a door comprisin y a platemounted in the top of the door, an upwardly projecting guide arm mountedon the plate at one end thereof proximate one edge of said door. and apivot member mounted on said plate at the other end thereof proximatethe other edge of said door.

16. A supporting and guiding mechanism for a door comprising a platemounted in the top of the door, an upwardly projecting guide arm mountedon the plate at one end thereof proximate one edge of said door, anupwardly projecting pivot member mounted on the plate at the other endthereof proximate the other edge of said door, and a squared section onthe pivot member to cooperate with a guide.

17. A supporting and guiding mechanism for a door comprising a platemounted in the top of the door, an upwardly projecting guide arm mountedon the plate at one end thereof, an upwardly projecting pivot membermounted on the plate at the other end thereof, a squared section on thepivot member and a lock pin carried by the plate to cooperate with aguide.

18. A supporting and guiding mechanism for a door comprising a platemounted in the top of the door, an upwardly projecting guide arm mountedon the plate at one end thereof, an upwardly projecting pivot member'mounted on the plate at the other end thereof, a squared section on thepivot member and a lock pin carried by the plate and having arectangular cross section.

19. A door supporting mechanism comprising a guide channel having aninwardly projecting channel, a curved notch in the channel, a doorhaving a pivot member with a reduced squared section adapted to engagethe groove, and a curved surface to engage the notch.

20. A door supporting mechanism comprising a guide channel having aninwardly projecting channel, a curved notch in the channel, a curvedslot in the channel concentric with the notch and a door having a pivotmember with a reduced squared section adapted to engage the groove, acurved surface on the member to engage the notch, and a lock pin on thedoor to engage the curved slot.

2l. A door supporting mechanism comprising a guide channel having aninwardly projecting channel, a curved notch in the channel, a shoulderin the notch, a curved slot in the channel concentric with the notch anda door having a pivot member with a reduced squared section adapted toengage the groove, a curved surface on the member to engage the notch,and a lock pin of rectangular cross section on the door to engage thecurved slot.

22. In combination, a plate mounted in the top of a door, a guide arm onone end of the plate, a pivot member on the other end, a flat portion onthe pivot member, a lock pin on the plate, a guide groove having aremovable portion carrying a stop against which the guide arm engages, acurved notch for the portion of the pivot member adjacent the at portionto engage, and a groove concentric with the notch for the lock pin toenter.

23. In combination, a plate mounted in the top of a door, a. guide arm.on one end of the plate, a pivot member on the other end, a flat portionon the pivot member, a lock pin having a rectangular cross section onthe plate, aguide groove having a removableportion carrying a stopagainst which the guide arm engages, a curved notch forv the portion ofthe pivot member adjacent the flat portion to engage, a shoulder in thenotch. for the fiat portion of the pivot member to engage, and a grooveconcentric with the notch for the lock pin to enter.

24. A door supporting member comprising a frame, a sleeve threaded inthe frame, a slot in the sleeve, a set screw in the frame engaging theslot, a shaft journaledin the sleeve, an abutment on the frame in aplane of the door, a door supporting device carried by the frame, and anabutment carried by the shaft transversely of the door to be engaged bythe rst abutment to support the door when the latter is turned.

25. A door supportingmember comprising a frame, a sleeve threaded in theframe, a slot in the sleeve, a set screw in the frame engaging the slot,a shaft journaled in the sleeve, an abutment on the frame in the planeof the door, a door supporting device carried by the shaft, and anabutment on the door supporting device carried by the shaft transverselyof the door to be engaged by the first abutment to support the door whenthe latter is turned.

26. A door supporting member comprising a frame, a sleeve threaded inthe frame, a slot in the sleeve, a set screw in the frame engaging theslot, a shaft journaled in the sleeve, an abutment on the frame in theplane of the door, a stub shaft carried by the rst named shaft, and anabutment carried by the stub shaft transversely of the door to beengaged by the first abutment when the door is turned.

27. The combination with a sliding and pivoting door of means to mountthe same slidably and pivotally, comprising a stationary stop memberadjacent the door, and an arm on the door, a portion of which is in theplane of the door, the path of movement of such portion not coincidingwith the stop member during sliding movement of the door, but coincidingtherewith upon pivotal movement of the door.

28. A sliding and folding partition comprising, the combination with adoorway, an upper guide groove extending from side to side of thedoorway and a floor guide groove having a stop proximate one endthereof, a pltuality of doors, guiding means carried by the top of thedoors to travel in the upper guide groove, cooperating locking means onthe top of the door and upper guide groove operable when the door isturned, weight supporting means carried with the bottom of the door andcooperating locking means carried with the bottom of the door and doorguide groove operable simultaneously with the rst named locking meanswhen the door is turned.

29. A sliding and folding partition comprising, the combination with adoorway having a stationary side member, a yielding side member, anupper guide groove extending from side to side of the doorway and afloor guide groove having a stop proximate one end thereof, a pluralityof doors, guiding means carried by the top of the doors to travel in theupper guide groove, cooperating locking means on the top of the door andupper guide groove operable when the door is turned, Weight supportingmeans carried with the bottom of the door and cooperating locking meanscarried with the bottom of the door and floor guide groove operablesimultaneously with the first named locking means when the door isturned.

30. A door supporting member comprising a frame, an abutment on theframe in the plane of the door, a door supporting device carried by theframe, and an abutment carried by the supporting device transversely ofthe door to be engaged by the rst mentioned abutment to prevent the doorfrom sagging when said door is turned.

31. A sliding and folding partition door having in combination a frame,means mounting a weight carrying member on the frame, a stop proximatethe path of sliding movement of the door, a bracket comprising an armcarried by the Weight carrying member, means for varying the position ofsaid bracket With reference to said frame, and relatively slidableinterengaging means between said bracket and frame for rotating said armto and from engagement with said stop when the door is rotated tofolding position.

32. A sliding and folding partition door having in combination a frame,means mounting a caster element on the frame, a stop proximate the pathof sliding movement of the door, a bracket comprising an arm carried bythe caster element, means for adjusting said bracket vertically withreference to said frame, and means between said bracket and frame forrotating said arm to and from engagement with said stop when the door`is rotated to folded position, said means comprising a notch in thebracket and a web on the frame adapted to cooperate throughout the rangeof the bracket adjustment.

EDWARD H. ELLISON.

